(Cell Reports 16, 2641–2650; September 6, 2016)

The original version of this article, published on August 25, 2016, included an incorrect immunoblot image. The anti-H3 loading control shown in Figure 2C was inadvertently duplicated from a separate project during manuscript preparation. This was an unintentional oversight.

Normally, the authors would replace the incorrect image with the correct one. However, because the experiments were performed more than 10 years ago, the original image/film could not be located. This is consistent with the authors’ institutional data-retention policy, which requires data to be kept for only three years after a project’s completion. After discussion, the authors and editors agreed that removing the immunoblot images from Figure 2C would prevent confusion for future readers without changing the article’s central conclusions.